Medium: bash

Issue Overview:

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell. (CVE-2019-9924)

Affected Packages:

bash

Issue Correction:
Run yum update bash to update your system.

New Packages:

i686:  
    bash-debuginfo-4.2.46-34.43.amzn1.i686  
    bash-doc-4.2.46-34.43.amzn1.i686  
    bash-4.2.46-34.43.amzn1.i686  
  
src:  
    bash-4.2.46-34.43.amzn1.src  
  
x86_64:  
    bash-4.2.46-34.43.amzn1.x86_64  
    bash-debuginfo-4.2.46-34.43.amzn1.x86_64  
    bash-doc-4.2.46-34.43.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-9924

Mitre: CVE-2019-9924